/* ==========================================================================
   Console Craft — design tokens
   ========================================================================== */
:root {
  --walnut-dark:    #18120d;
  --walnut-panel:   #241a12;
  --walnut-panel-2: #2c2018;
  --walnut-line:    #4a372a;
  --brass:          #b8935a;
  --brass-bright:   #d9b581;
  --parchment:      #ede6d6;
  --parchment-dim:  #b7a892;
  --sage:           #7a9b7e;
  --brick:          #b5645a;

  --font-display: 'Spectral', Georgia, serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --wrap: 1180px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--walnut-dark);
  color: var(--parchment);
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
}

a { color: inherit; }

.grain-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Focus visibility */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--brass-bright);
  outline-offset: 3px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 14px;
}

h1, h2, h3 { font-weight: 500; margin: 0; color: var(--parchment); }

h1 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.12;
  font-weight: 400;
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(1.7rem, 2.6vw, 2.3rem);
  font-weight: 400;
  max-width: 780px;
  margin-bottom: 44px;
}

h3 {
  font-size: 1.35rem;
  font-weight: 500;
  margin-bottom: 14px;
  line-height: 1.35;
}

p { color: var(--parchment-dim); }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(24, 18, 13, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--walnut-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--parchment);
}

.brand-mark { color: var(--brass); display: inline-flex; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 13.5px;
}

.site-nav a {
  text-decoration: none;
  color: var(--parchment-dim);
  transition: color 0.15s ease;
}
.site-nav a:hover { color: var(--brass-bright); }

.nav-cta {
  padding: 8px 16px;
  border: 1px solid var(--brass);
  border-radius: 3px;
  color: var(--brass-bright) !important;
}
.nav-cta:hover { background: var(--brass); color: var(--walnut-dark) !important; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  padding: 13px 24px;
  border-radius: 3px;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn-primary {
  background: var(--brass);
  color: var(--walnut-dark);
}
.btn-primary:hover { background: var(--brass-bright); transform: translateY(-1px); }

.btn-ghost {
  border-color: var(--walnut-line);
  color: var(--parchment);
}
.btn-ghost:hover { border-color: var(--brass); color: var(--brass-bright); }

.btn-large { padding: 15px 30px; font-size: 15px; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { padding: 88px 0 64px; position: relative; z-index: 2; }

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero-lede {
  font-size: 1.08rem;
  max-width: 46ch;
  margin: 22px 0 30px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 20px; }

.hero-note {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--walnut-line);
  max-width: 42ch;
  line-height: 1.6;
}

.hero-frame { position: relative; }

.console-panel {
  position: relative;
  border-radius: 6px;
  padding: 10px;
  background: linear-gradient(155deg, var(--walnut-panel-2), var(--walnut-panel));
  border: 1px solid var(--walnut-line);
  box-shadow: 0 30px 70px -30px rgba(0,0,0,0.7);
}

.console-panel img {
  width: 100%;
  display: block;
  border-radius: 3px;
}

.console-panel-glow {
  position: absolute;
  top: -30px; left: 20%;
  width: 60%; height: 90px;
  background: radial-gradient(ellipse, rgba(184,147,90,0.28), transparent 70%);
  filter: blur(6px);
  pointer-events: none;
}

.frame-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--walnut-line);
  text-align: center;
  margin-top: 12px;
  letter-spacing: 0.02em;
}

/* ==========================================================================
   Stop rail divider (signature element)
   ========================================================================== */
.stop-rail {
  position: relative;
  padding: 34px 0 46px;
  overflow: hidden;
}

.stop-rail-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}
.rail-line { stroke: var(--walnut-line); stroke-width: 1; }

.stop-rail-knobs {
  position: relative;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px 8px;
}

.knob {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: 1 1 100px;
}

.knob::before {
  content: "";
  width: 30px; height: 30px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--parchment), var(--brass) 70%, #7d5f38 100%);
  border: 1px solid var(--walnut-line);
  box-shadow: 0 3px 6px rgba(0,0,0,0.4);
}

.knob.knob-accent::before {
  background: radial-gradient(circle at 35% 30%, #d7e6d8, var(--sage) 70%, #4c6b50 100%);
}

.knob span {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-align: center;
  color: var(--parchment-dim);
  letter-spacing: 0.01em;
  max-width: 100px;
}

/* ==========================================================================
   Problem
   ========================================================================== */
.problem { padding: 40px 0 90px; }

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.problem-card {
  background: var(--walnut-panel);
  border: 1px solid var(--walnut-line);
  border-radius: 6px;
  padding: 28px 26px;
}

.pc-mark {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--brass-bright);
  border: 1px solid var(--walnut-line);
  border-radius: 3px;
  padding: 3px 9px;
  margin-bottom: 16px;
}

.problem-card p { margin: 0; font-size: 15px; }

/* ==========================================================================
   Features
   ========================================================================== */
.features { padding: 30px 0 100px; }

.feature-row {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: center;
  padding: 60px 0;
  border-top: 1px solid var(--walnut-line);
}
.features h2 { border: none; padding: 0; }
.feature-row:first-of-type { border-top: none; padding-top: 10px; }

.feature-row.reverse { grid-template-columns: 1.15fr 0.85fr; }
.feature-row.reverse .feature-text { order: 2; }
.feature-row.reverse .feature-image { order: 1; }

.feature-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sage);
  display: block;
  margin-bottom: 14px;
}

.feature-text p { font-size: 15px; }

.feature-image img {
  width: 100%;
  display: block;
  border-radius: 5px;
  border: 1px solid var(--walnut-line);
  box-shadow: 0 20px 50px -25px rgba(0,0,0,0.65);
}

.feature-image-stack { display: flex; flex-direction: column; gap: 14px; }
.stack-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* ==========================================================================
   Validate
   ========================================================================== */
.validate {
  padding: 30px 0 100px;
}

.validate-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
  background: var(--walnut-panel);
  border: 1px solid var(--walnut-line);
  border-radius: 10px;
  padding: 52px;
}

.validate-copy h2 { margin-bottom: 20px; }
.validate-copy p { font-size: 15px; margin-bottom: 26px; }

.validate-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 14px;
  color: var(--parchment-dim);
}

.validate-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.v-blocker, .v-warning, .v-pass {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 3px;
  flex: none;
}
.v-blocker { background: rgba(181,100,90,0.16); color: var(--brick); }
.v-warning { background: rgba(184,147,90,0.16); color: var(--brass-bright); }
.v-pass { background: rgba(122,155,126,0.16); color: var(--sage); }

.validate-image img {
  width: 100%;
  display: block;
  border-radius: 5px;
  border: 1px solid var(--walnut-line);
  box-shadow: 0 20px 50px -25px rgba(0,0,0,0.65);
}

/* ==========================================================================
   Cathedral break
   ========================================================================== */
.organ-break {
  position: relative;
  height: 62vh;
  min-height: 420px;
  max-height: 640px;
  background-image: url("images/cathedral-organ.webp");
  background-size: cover;
  background-position: center 30%;
  background-attachment: fixed;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border-top: 1px solid var(--walnut-line);
  border-bottom: 1px solid var(--walnut-line);
}

@supports (-webkit-touch-callout: none) {
  /* iOS Safari handles background-attachment: fixed poorly */
  .organ-break { background-attachment: scroll; }
}

.organ-break-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(24,18,13,0.15) 0%, rgba(24,18,13,0.55) 55%, rgba(24,18,13,0.94) 100%);
}

.organ-break-inner {
  position: relative;
  z-index: 1;
  padding-bottom: 56px;
}

.organ-break .eyebrow { color: var(--brass-bright); }

.organ-break-line {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  line-height: 1.5;
  max-width: 30ch;
  color: var(--parchment);
  margin: 0;
}

@media (max-width: 900px) {
  .organ-break { background-attachment: scroll; height: 50vh; min-height: 340px; }
}

/* ==========================================================================
   Stack
   ========================================================================== */
.stack { padding: 20px 0 100px; text-align: center; }
.stack h2 { margin: 0 auto 32px; }
.stack .eyebrow, .stack h2 { text-align: center; margin-left: auto; margin-right: auto; }

.stack-badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 30px;
}

.stack-badges span {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 9px 18px;
  border: 1px solid var(--walnut-line);
  border-radius: 20px;
  color: var(--parchment-dim);
}

.stack-note {
  max-width: 60ch;
  margin: 0 auto;
  font-size: 15px;
}

/* ==========================================================================
   Get it
   ========================================================================== */
.get-it {
  padding: 20px 0 110px;
  text-align: center;
}
.get-it-inner { max-width: 640px; margin: 0 auto; }
.get-it h2 { margin: 0 auto 30px; }
.get-it .eyebrow { text-align: center; }

.get-it-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.get-it-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--walnut-line);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--walnut-line);
  padding: 30px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--walnut-line);
}
.footer-dim { color: var(--walnut-line); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-frame { order: -1; }
  .problem-grid { grid-template-columns: 1fr; }
  .feature-row, .feature-row.reverse {
    grid-template-columns: 1fr;
  }
  .feature-row.reverse .feature-text,
  .feature-row.reverse .feature-image { order: initial; }
  .validate-inner { grid-template-columns: 1fr; padding: 36px 24px; }
  .site-nav { gap: 16px; font-size: 12.5px; }
  .stack-pair { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 20px; }
  .site-nav a:not(.nav-cta) { display: none; }
  .stop-rail-knobs { justify-content: flex-start; }
  .knob { flex: 1 1 70px; }
  .knob span { font-size: 9px; max-width: 70px; }
}